A) force B) friction C) work D) gravitation E) magnetism
A) magnetism B) work C) friction D) gravitation E) force
A) gravitation B) work C) force D) friction E) magnetism
A) unbalanced forces B) work C) magnetism D) balanced forces E) force
A) gravitation B) power C) work D) net force E) force
A) power B) force C) friction D) net force E) work
A) work B) unbalanced forces C) balanced forces D) power E) friction
A) friction B) magnetism C) newton D) gravity
A) an outside force acts on it B) it is placed on a flat surface C) a nearby star acts on it D) it continues in a straight line
A) a greater force pushing on it B) a movement in all directions C) an equal and opposite reaction D) a force sending it backward
A) its mass and velocity changes B) its momentum changes C) Its position changes D) its frame of reference changes
A) Why all moving objects eventually stop moving B) how frame of reference influences movement C) The movement of objects on Earth and in space D) the relationship between the four basic elements
A) the ground pushes against your feet when you run B) friction can be overcome for all objects C) gravitational forces are stronger on Earth than on the moon or other satellites D) People in a car move forward in their seats when the car stops quickly
A) orbit B) reaction force C) inertia D) law of universal gravitation
A) orbit B) action force C) Law of Gravitation D) inertia E) reaction force
A) inertia B) action force C) orbit D) Reaction force
A) position B) momentum C) velocity D) speed E) acceleration
A) velocity of that object B) the speed of that object C) momentum of that object D) position of that object E) acceleration of that object
A) position B) velocity C) momentum D) speed E) acceleration
A) velocity B) momentum C) position D) speed E) acceleration
A) a spacecraft can travel in space for thousands of years B) a pole can be knocked down when a moving car hits it C) trucks slow down when they are travelling uphill D) a ball thrown into the air always falls back toward Earth
A) a pulley and a screw B) A screw and a wedge C) a wedge and a pulley D) a lever and a wedge
A) friction B) speed C) a magnet D) a machine
A) a power B) a machine C) a force D) a current
A) work B) power C) magnetism D) force E) friction |